Contents
Science – WBPSC Food SI Previous Year Question Paper
Food SI Question Paper – 2022 (S-1)
- Plague is a disease caused by
(A) Mosquito
(B) Rats
(C) Bats
(D) Birds
- Polio is caused by
(A) Bacteria
(B) Virus
(C) Anti-biotic
(D) Medicine
- Plants manufacture food through
(A) Photosynthesis
(B) Respiration
(C) Transpiration
(D) Evaporation
- Water is composed of
(A) Hydrogen and Ozone
(B) Hydrogen and Oxygen
(C) Nitrogen and Oxygen
(D) Chlorine and Oxygen
- Vitamin C is present in
(A) Neem
(B) Lemon
(C) Milk
(D) Carrot
- Bats navigate in the dark using
(A) Eyes
(B) Nose
(C) Echo
(D) Smell
- Cornea is present in the
(A) Ear
(B) Eye
(C) Nose
(D) Stomach
- Carrots are rich in
(A) Vitamin B
(B) Vitamin C
(C) Vitamin A
(D) Vitamin D
- The human body consists of
(A) 205 bones
(B) 206 bones
(C) 204 bones
(D) 203 bones
- The Chemical name for common salt is
(A) Sodium Fluoride
(B) Sodium Chloride
(C) Potassium Cyanide
(D) Potash
- Minamata Disease is due to
(A) Sulphur
(B) Nitrogen
(C) Mercury
(D) Potassium
- One of the following is responsible for Global Warming:
(A) Nitric oxide
(B) Carbon dioxide
(C) Sulphuric Acid
(D) Nitric Acid
- Milk is a rich source of
(A) Vitamin C
(B) Calcium
(C) Potash
(D) Carbide
- Blood has one of the following groups:
(A) M
(B) N
(C) O
(D) P
Food SI Question Paper – 2022 (S-2)
3. Ascorbic Acid is the scientific name for
(A) Protein
(B) Carbohydrate
(C) Vitamin C
(D) Vitamin D
17. Sea Salt contains
(A) Protein
(B) Iodine
(C) Nicotine
(D) Vitamin
61. Insulin is secreted from
(A) Liver
(B) Pancreas
(C) Stomach
(D) Brain
77. One Horse Power is equivalent to
(A) 745 watts
(B) 746 watts
(C) 750 watts
(D) 751 watts
82. Beri-Beri disease is on account of the deficiency of
(A) Vitamin A
(B) Vitamin B
(C) Vitamin C
(D) Vitamin D
98. The filament of an electric bulb is made of
(A) Hydrogen
(B) Tungsten
(C) Halogen
(D) Mercury
Food SI Question Paper – 2022 (S-3)
- What is the primary factor that determines the pitch (frequency) of a sound produced by a musical instrument?
(A) Volume of the instrument
(B) Length of the vibrating part
(C) Material from which the instruments is made
(D) The instrument player’s skill level
- The leaf size of vegetation is a function of—
(A) Temperature
(B) Moisture Availability
(C) Altitude
(D) Temperature & Moisture both
- What is the medical term for a low platelet count in blood?
(A) Thrombocytes
(B) Thrombocytopenia
(C) Haemophilia
(D) Leucocytosis
- Viticulture is related to the cultivation of
(A) Apple
(B) Orange
(C) Grape
(D) Wheat
- Which Vitamin is known as Riboflavin?
(A) Vitamin B₂
(B) Vitamin D
(C) Vitamin C
(D) Vitamin A
- What is the chemical symbol for Silver?
(A) Au
(B) Ag
(C) Cu
(D) Mg
- What is the primary function of the human kidneys?
(A) Digestion
(B) Filtration of blood and waste excretion
(C) Oxygen transport
(D) Regulation of body temperature
- Which nutrient is a primary contributor to eutrophication?
(A) Nitrogen & Phosphorous
(B) Calcium & Phosphorous
(C) Magnesium & Sulphur
(D) Magnesium & Potassium
- What is the smallest unit of information?
(A) Bit
(B) Byte
(C) Gram
(D) Hertz
- Which phenomenon is responsible for the formation of a rainbow when sunlight interacts in the water droplets in the atmosphere?
(A) Diffraction
(B) Refraction and reflection
(C) Dispersion
(D) Interference
- Malpighian Tubules are found in
(A) Respiratory system
(B) Circulatory system
(C) Digestive system
(D) Excretory system
Food SI Question Paper – 2022 (S-4)
10. Universal blood donor group—
(A) Group A
(B) Group B
(C) Group AB
(D) Group O
34. Brass is made of following metals:
(A) Iron-Copper
(B) Copper-Tin
(C) Copper-Aluminium
(D) Copper-Zinc
54. Only metal that is liquid at normal temperature
(A) Gold
(B) Zinc
(C) Copper
(D) Mercury
62. Human skin tone is governed by the pigment—
(A) Melanin
(B) Silicon
(C) Insulin
(D) None of the above
Food SI Question Paper – 2022 (S-5)
1. Which one of the following is not a greenhouse gas?
(A) CO₂
(B) CH₄
(C) O₂
(D) CFCs
3. The brain of human body is responsible for
(A) Thinking
(B) Regulating the heart beat
(C) Balancing the body
(D) All of the above
12. Methanoic acid is present in the
(A) Sour milk
(B) Tamarind
(C) Orange
(D) Ant sting
40. The acid present in the lemon is
(A) Lactic acid
(B) Oxalic acid
(C) Citric acid
(D) Acetic acid
48. The chemically inactive gas present in the atmosphere is
(A) Oxygen
(B) Water vapour
(C) Nitrogen
(D) Argon
57. Name the disease caused due to deficiency of iodine in our diet.
(A) Myopia
(B) Goitre
(C) Scurvy
(D) Anaemia
58. Which one of the following is an example of the Ferrous Metal?
(A) Copper
(B) Tin
(C) Bauxite
(D) Nickel
60. Deficiency of which vitamin is responsible for rickets in Children?
(A) Vitamin A
(B) Vitamin B
(C) Vitamin C
(D) Vitamin D
80. In human eye the part which allows light to enter into the eye is
(A) Retina
(B) Pupil
(C) Eye lens
(D) Cornea
95. Which one is not an ore of iron?
(A) Bauxite
(B) Hematite
(C) Magnetite
(D) Siderite
98. Which of the following is a plant hormone?
(A) Insulin
(B) Thyroxine
(C) Oestrogen
(D) Cytokinin
Food SI Question Paper – 2022 (S-6)
- The colour that scatters the least by the tiny particles of the atmosphere is
(A) violet
(B) green
(C) yellow
(D) red
- Galvanisation is a method of protecting iron from rusting by coating with a thin layer of
(A) Gallium
(B) Aluminium
(C) Zinc
(D) Silver
- The image formed on the retina of the human eye is
(A) virtual and inverted
(B) real and inverted
(C) real and erect
(D) virtual and erect
- Lime water reacts with chlorine to give
(A) bleaching powder
(B) baking powder
(C) baking soda
(D) washing soda
- The mirror used as rear-view mirror in vehicles
(A) convex mirror
(B) plane mirror
(C) cylindrical mirror
(D) concave mirror
- Artificial flavour for orange is obtained from
(A) amyl acetate
(B) isoamyl valerate
(C) methyl butyrate
(D) octyl acetate
- Tomato is a natural source of which acid?
(A) Acetic acid
(B) Citric acid
(C) Tartaric acid
(D) Oxalic acid
- Which of the following mirror is used by a dentist to examine a small cavity?
(A) Convex mirror
(B) Plane mirror
(C) Concave mirror
(D) Combination of convex and concave mirror
- Sodium hydroxide is used
(A) as an antacid
(B) in manufacture of soap
(C) as a cleansing agent
(D) in alkaline batteries
- Acid rain is caused by the oxides of
(A) carbon
(B) nitrogen
(C) sulphur
(D) sulphur and nitrogen
- Which of the following is biodegradable?
(A) Aluminium can
(B) Polythene bag
(C) Cowdung
(D) DDT
- Which of the following characters can be acquired but not inherited?
(A) Colour of skin
(B) Size of body
(C) Colour of eyes
(D) Texture of hair
- Roots of the plants absorb water from the soil through the process of
(A) diffusion
(B) transpiration
(C) osmosis
(D) None of the above
- Tooth enamel is made up of
(A) calcium phosphate
(B) calcium carbonate
(C) calcium oxide
(D) potassium
- Which of the following causes depletion of the ozone layer?
(A) Carbon tetrachloride
(B) Methane
(C) Chlorofluorocarbon
(D) Carbon monoxide
Food SI Question Paper – 2019
12. Consider the following statements:
(I) 2G spectrum uses bandwidth of 30-200 KHz.
(II) 3G spectrum uses bandwidth of 15-20 MHz.
(III) 4G spectrum uses bandwidth of at least 40 MHz.
Which of the statements given above is/are correct?
(A) All of these
(B) (I) and (II)
(C) (II) and (III)
(D) Only (III)
14. The largest flower in the world is
(A) Lotus
(B) Rafflesia
(C) Giant Cactus
(D) None of the above
15. Which of the following is a popular programming language for developing multimedia web pages?
(A) COBOL
(B) Java
(C) BASIC
(D) Assembler
17. The chemically inactive gas present in the atmosphere is
(A) Nitrogen
(B) Argon
(C) Water vapour
(D) Oxygen
20. Which of the following is responsible for the energy released by Sun?
(A) Fission
(B) Fusion
(C) Chemical section
(D) Gravitational collapse
21. Which of the following is not a source of renewable energy?
(A) Hydroelectricity
(B) Solar energy
(C) Fuel cell
(D) Wind energy
22. Solar eclipse occurs when
(A) Earth comes between Sun and Moon
(B) Moon is at right angle to the Sun
(C) Moon comes between Sun and Earth
(D) Sun comes between Moon and Earth
26. The vitamin which is generally excreted by humans in urine is
(A) Vitamin A
(B) Vitamin D
(C) Vitamin C
(D) Vitamin A and D
27. Which falls down fastest in vacuum—a feather, a wooden ball or a steel ball?
(A) a wooden ball
(B) a feather
(C) a steel ball
(D) All of them with same speed
30. Calcium content is maximum in
(A) Bajra
(B) Maize
(C) Sorghum
(D) Wheat
31. Dialysis is used for people with defective kidneys. It involves the process of
(A) Adsorption
(B) Osmosis
(C) Electrophoresis
(D) Diffusion
32. Which Scientist wrote a book called “A Brief History of Time”?
(A) Stephen Hawking
(B) Edward Jenner
(C) Meghnath Saha
(D) Pasteur
36. Shanti Swarup Bhatnagar Award is associated with
(A) Sports
(B) Science and Technology
(C) Agriculture
(D) Film
39. Which of the following pairs belongs to the category of cold-blooded animals?
(A) Birds and Monkeys
(B) Snakes and Birds
(C) Frogs and Snakes
(D) Rats and Lizards
42. Troposphere is the hottest part of the atmosphere because
(A) it is closest to the Sun
(B) there are charged particle in it
(C) it is heated by Earth’s surface
(D) heat is generated in it
49. The most malleable metal is
(A) Silver
(B) Gold
(C) Aluminium
(D) Sodium
Food SI Question Paper – 2014
51. The nonmetal that conducts heat and current
(A) Graphite
(B) Boron
(C) Silicon
(D) Phosphorus
52. The fourth state of matter
(A) Plasma
(B) Solid
(C) Viscous
(D) Super cooled
53. Pressure cooker cooks rice faster because
(A) It always lets the steam escape
(B) High pressure crushes the hard covering of rice grains
(C) It does not let the heat energy escape easily
(D) High pressure raises the boiling point of water
54. Which of the following foods is the best source of Protein?
(A) Butter
(B) Fish
(C) Lettuce
(D) Milk
55. DRDO stands for
(A) Department of Research and Development Organisations
(B) Dental Research and Developmental Organisation
(C) Documentary Reforms and Deployment Organisation
(D) Defence Research and Development Organisation
60. The gas present in the stratosphere which filters out some of the sun’s ultraviolet light and
provides an effective shield against radiation damage to living things is
(A) Helium
(B) Ozone
(C) Oxygen
(D) Methane
65. A body moving uniformly along a circular path has-
(A) Constant velocity
(B) Constant speed
(C) Variable speed
(D) Same direction of motion
71. Ecology is the study of interrelations among-
(A) Soil and water
(B) Man and environment
(C) Organisms and environment
(D) Members of a family
72. Ornithology is the study of
(A) Bones
(B) Birds
(C) Smells
(D) None of the above
73. Light energy is converted into chemical energy in
(A) Electrolysis
(B) Photosynthesis
(C) Respiration
(D) Photoelectric effect
78. If the mass and velocity of an object both are doubled, its kinetic energy becomes
(A) 4 times
(B) 8 times
(C) 12 times
(D) 16 times
79. Depletion of ozone layer is mainly caused by
(A) Chlorofluorocarbon (CFC)
(B) Oxygen
(C) Nitrogen
(D) Argon
82. The pale yellowish colour of the urine in a normal person is due to the presence of pigment-
(A) Bilirubin
(B) Biliverdin
(C) Lecithin
(D) Urochrome
83. Malfunctioning of which of the following organs causes jaundice?
(A) Stomach
(B) Pancreas
(C) Liver
(D) Kidney
88. Light year is related to
(A) Energy
(B) Speed
(C) Distance
(D) Intensity
93. Who invented Electric Generator?
(A) Sir Alexander Graham Bell
(B) Michael Faraday
(C) Alfred B Nobel
(D) Thomas Alva Edison
95. Smoke is a
(A) Solution of liquid in gas
(B) Solution of solid in gas
(C) Solution of gas in gas
(D) Solution of solid in liquid
97. If we add extra solvent to a solution, it becomes
(A) Super-saturated
(B) Saturated
(C) Non-saturated
(D) Colloidal solution
101. When heat is given to solid, its temperature
(A) Increases
(B) Decreases
(C) Either increases or remains same
(D) Remains same
102. Essential oils are purified by
(A) Fractional distillation
(B) Steam distillation
(C) Sublimation
(D) Simple distillation
103. The major constituent of Air is
(A) Nitrogen
(B) Carbon dioxide
(C) Oxygen
(D) Hydrogen
116. The main active constituent of tea and coffee is
(A) Nicotine
(B) Chlorophyll
(C) Caffeine
(D) Aspirin
117. To get three images of an object one should have to place two plane mirrors at an angle of
(A) 120°
(B) 30°
(C) 90°
(D) 60°
119. Atmosphere contains dust particles, salt grains, pollens grains, smoke etc. which are
collectively known as
(A) Water Vapour
(B) Ozone
(C) Aerosols
(D) CFC
134. Potato is a modified form (outgrowth) of
(A) Stem
(B) Root
(C) Leaf
(D) Fruit
137. The mass of 1 litre of water at 4°C is
(A) 1 gm
(B) 1 mg
(C) 1 kg
(D) 1 quintal
138. Escape velocity of a rocket fired from the earth towards the moon is a velocity to get rid of
the
(A) Earth’s gravitational pull
(B) Moon’s gravitational pull
(C) Centripetal force due to the earth’s rotation
(D) Pressure of the atmosphere
145. Of the different blood groups A, B, AB and O which one can be given to a person whose
blood group is A?
(A) Group A only
(B) Group B only
(C) Group A and O
(D) Group A and B
Food SI Question Paper – 2006
37. Which chamber of the human heart receives oxygen-rich blood ?
(A) Right Atrium
(B) Right Ventricle
(C) Left Atrium
(D) Left Ventricle
43. Haemoglobin is
(A) Simple Protein
(B) Conjugated Protein
(C) Complex Protein
(D) Lipids
47. In human body urea is produced in
(A) Kidney
(B) Stomach
(C) Small intestine
(D) Liver
53. The main constituent of blood is
(A) Albumin
(B) Globulin
(C) Fibrinogen
(D) All of the above
57. A gas which expands in volume(liquid form) when cooled further into liquid state
(A) Liquid Ammonia
(B) Liquid Helium
(C) Liquid Hydrogen
(D) Liquid Oxygen
63. Which of the following is not an ore of magnesium ?
(A) Magnesite
(B) Carnallite
(C) Dolomite
(D) Gypsum
67. If the velocity ratio of a machine is 10 and the mechanical advantage is 5, then the efficiency of the machine is
(A) 100%
(B) 75%
(C) 50%
(D) 25%
69. When a liquid solidifies its volume increases by 10%. What is the volume when the solid melts ?
(A) 10%
(B) 11¹⁄₉%
(C) 9¹⁄₁₁%
(D) 20%
78. The maximum level of sound intensity beyond which it affects human hearing ?
(A) 25 decibel
(B) 45 decibel
(C) 65 decibel
(D) 80 decibel
80. The power of a lens is 2 Dioptre. What will be the focal length of the lens ?
(A) 100 cm
(B) 50 cm
(C) 30 cm
(D) 20 cm
88. Which of the following is an example of second class lever ?
(A) Spade
(B) Punching Machine
(C) Scissor
(D) General Cotton Machine
90. If a particle travels a circular path of radius r once in t seconds and reaches its destination, the velocity of the particle will be
(A) 2πrt
(B) Zero
(C) t/(2πr)
(D) (2πr/t)
91. Which of the following is a plant hormone ?
(A) Ascorbic Acid
(B) Indole Acetic Acid
(C) Folic Acid
(D) Fumaric Acid
94. Blood pressure is measured by which instrument ?
(A) Stethoscope
(B) Sphygmanometer
(C) Douglas Bag
(D) None of the above
98. The solubility of which of the following compounds decreases with increase in temperature?
(A) NH4Br
(B) Na2SO4
(C) CaSO4
(D) All of the above
100. Which of the following is not a polymer?
(A) Rubber
(B) Cellulose
(C) Fructose
(D) Protein